Compositions and methods for treatment of inflammatory disorders

ABSTRACT

The present invention relates to methods of treating infectious, inflammatory and post-traumatic disorders by administering various compounds newly discovered to have TLR4 inhibitory activity. In addition to methods of treatment, the present invention further provides for pharmaceutical compositions comprising said compounds, together with a suitable pharmaceutical carrier.

REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No. 15/996,383, filed Jun. 1, 2018, which is a continuation-in-part of U.S. patent application Ser. No. 15/383,625, filed Dec. 19, 2016, which is a continuation of U.S. patent application Ser. No. 14/717,349, filed May 20, 2015, which is a continuation of U.S. patent application Ser. No. 13/848,809, filed Mar. 22, 2013, now U.S. Pat. No. 9,072,760, issued on Jul. 7, 2015, which is a continuation of International Patent Application Serial No. PCT/US2011/053293, filed Sep. 26, 2011, which claims priority to U.S. Provisional Application Ser. No. 61/387,335, filed Sep. 28, 2010, and to U.S. Provisional Application Ser. No. 61/386,345, filed Sep. 24, 2010. The contents of each of the foregoing are incorporated by reference for all purposes as if fully set forth herein.

STATEMENT OF GOVERNMENTAL INTEREST

This invention was made with government support under grant no. DOD/OEA ST1429-14-01 awarded by the Department of Defense. The government has certain rights in the invention.

INCORPORATION-BY-REFERENCE OF MATERIAL SUBMITTED ELECTRONICALLY

The instant application contains a Sequence Listing which has been submitted in ASCII format via EFS-Web and is hereby incorporated by reference in its entirety. Said ASCII copy, created on Jun. 1, 2018, is named P14916-01_ST25.txt and is 2,875 bytes in size.

BACKGROUND OF THE INVENTION

The presence of endotoxins in the blood is called endotoxemia. It can lead to septic shock, if the immune response is severely pronounced. Moreover, endotoxemia of intestinal origin, especially, at the host-pathogen interface, is considered to be an important factor in the development of alcoholic hepatitis, which is likely to develop on the basis of the small bowel bacterial overgrowth syndrome and an increased intestinal permeability. It is also the source of neonatal necrotizing enterocolitis (NEC).

Lipopolysaccharides (LPS), including Lipid A may cause uncontrolled activation of mammalian immune systems with production of inflammatory mediators that may lead to septic shock. This inflammatory reaction is mediated by Toll-like receptor 4 (TLR4) which is responsible for immune system cell activation. Damage to the endothelial layer of blood vessels caused by these inflammatory mediators can lead to capillary leak syndrome, dilation of blood vessels and a decrease in cardiac function and can lead to septic shock. Pronounced complement activation can also be observed later in the course as the bacteria multiply in the blood. High bacterial proliferation triggering destructive endothelial damage can also lead to disseminated intravascular coagulation (DIC) with loss of function of certain internal organs such as the kidneys, adrenal glands and lungs due to compromised blood supply. The skin can show the effects of vascular damage often coupled with depletion of coagulation factors in the form of petechiae, purpura and ecchymoses. The limbs can also be affected, sometimes with devastating consequences such as the development of gangrene, requiring subsequent amputation. Loss of function of the adrenal glands can cause adrenal insufficiency and additional hemorrhage into the adrenals causes Waterhouse-Friderichsen syndrome, both of which can be life-threatening. It has also been reported that gonococcal LOS can cause damage to human fallopian tubes.

More specifically, NEC reflects the sudden inflammation and death of the infant's intestines, yet its causes remain obscure, and current therapy—which often includes surgery to remove the diseased intestine—still is associated with death in nearly half of patients. In seeking to identify the causes of NEC, the Hackam laboratory has identified that the premature infant intestine contains a TLR4 “switch”, which is “turned on” in premature babies by bacteria, leading to NEC. Prior studies have shown that the administration of breast milk is protective, although this is unfortunately only available for a minority of patients. Using computer assisted drug design, Hackam and colleagues recently identified a novel molecule, whose analogues are found in breast milk, and which can safely “shut off” the TLR4 switch in mice and piglets, after oral administration. The current disclosure examines the role of a new set of analogs for the prevention or treatment of NEC using a well validated mouse model.

SUMMARY OF THE INVENTION

In accordance with an embodiment, the present invention provides a compound having the following formula:

wherein R₁ is a C₃-C₆ branched or cyclic alkane, R₂ is H, or C₁-C₄ alkyl, R₃, R₄, R₅ and R₆ are each individually H, acyl, and C₂-C₆ alkyl or branched alkyl, X is C₁-C₃ alkyl, or a salt, solvate or stereoisomer thereof.

In accordance with an embodiment, the present invention provides a compound of formula I, having the following formula:

wherein R₂ is methyl, R₃ and R₄ are H, R₅ and R₆ are each individually H, and C₂-C₆ alkyl, and R₁ is a C₃-C₆ branched or cyclic alkane, or a salt, solvate or stereoisomer thereof, with the proviso that R₅ and R₆ cannot both be H or acyl and R₁ cannot be isopropyl.

In accordance with an embodiment, the present invention provides a compound having the following formula:

wherein R₂ is methyl, R₃ and R₄ are H, R₅ and R₆ are each individually H, and C₂-C₆ alkyl, and R₁ is a C₃-C₆ branched or cyclic alkane, or a salt, solvate or stereoisomer thereof, with the proviso that R₅ and R₆ cannot both be H or acyl and R₁ cannot be isopropyl.

In accordance with an embodiment, the present invention provides a compound of formula II having the formula:

or a salt, solvate or stereoisomer thereof.

In accordance with an embodiment, the present invention provides a compound of formula III having the formula:

or a salt, solvate or stereoisomer thereof.

In accordance with an embodiment, the present invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of formula (II):

wherein R₂ is methyl, R₃ and R₄ are H, R₅ and R₆ are each individually H, and C₂-C₆ alkyl, and R₁ is a C₃-C₆ branched or cyclic alkane, or a salt, solvate or stereoisomer thereof, with the proviso that R₅ and R₆ cannot both be H or acyl and R₁ cannot be isopropyl, and a pharmaceutically acceptable carrier.

In accordance with an embodiment, the present invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of formula (III):

wherein R₂ is methyl, R₃ and R₄ are H, R₅ and R₆ are each individually H, and C₂-C₆ alkyl, and R₁ is a C₃-C₆ branched or cyclic alkane, or a salt, solvate or stereoisomer thereof, with the proviso that R₅ and R₆ cannot both be H or acyl and R₁ cannot be isopropyl, and a pharmaceutically acceptable carrier.

In accordance with an embodiment, the present invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of formula (II) having the formula:

or a salt, solvate or stereoisomer thereof, further comprising an effective amount of at least one additional biologically active agent.

In accordance with an embodiment, the present invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of formula (III) having the formula:

or a salt, solvate or stereoisomer thereof, further comprising an effective amount of at least one additional biologically active agent.

In accordance with another embodiment, the present invention provides a pharmaceutical compositions described above, further comprising an effective amount of at least one additional biologically active agent.

In accordance with a further embodiment, the present invention provides a method for treating an infectious or inflammatory disorder in a subject in need thereof comprising administering to the subject an effective amount of one or more compounds as described above.

In accordance with a further embodiment, the present invention provides a method for treating an intestinal inflammatory disorder in a subject in need thereof comprising administering to the subject an effective amount of one or more compounds as described above.

In accordance with a further embodiment, the present invention provides a method for treating a cardiovascular inflammatory disorder in a subject in need thereof comprising administering to the subject an effective amount of one or more compounds as described above.

In accordance with a further embodiment, the present invention provides a method for treating a pulmonary inflammatory disorder in a subject in need thereof comprising administering to the subject an effective amount of one or more compounds as described above.

In accordance with a further embodiment, the present invention provides a method for treating a traumatic injury in a subject in need thereof comprising administering to the subject an effective amount of one or more compounds as described above.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates the efficacy of C34, C34triol and C34-HP403 in endotoxemic model of mice. C57BL/6 mice ˜3 weeks old were intraperitoneally injected with Sal (Saline/DMSO), LPS 10 mg/kg alone or co-injected with 10 mg/kg either C34, or C34-Trios, or C34-HP403. All mice were sacrificed 6 hrs later, small intestine (terminal ileum) was harvested for total RNA isolation using Qiagnen RNeasy kits and reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA levels of pro-inflammatory cytokines was amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green supermix on CFX96 thermal cycler. Rplp0 housekeeping genes was used to normalize gene expression and relative mRNA expression data was calculated using the 2-ΔΔCT method.

FIG. 2: Potency and efficacy comparison of C34, C34triol and C34-HP403 in intestinal epithelial cells challenged with LPS. C57BL/6 mice 3 weeks old were intraperitoneally injected with Sal (Saline/DMSO), LPS 10 mg/kg alone or co-injected with C34 or C34-HP403 at indicated dosages. All mice were sacrificed 6 hrs later, small intestine (terminal ileum) was harvested for total RNA isolation using Qiagnen RNeasy kits and reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA levels of pro-inflammatory cytokines was amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green supermix on CFX96 thermal cycler. Rplp0 housekeeping genes were used to normalize gene expression and relative mRNA expression data was calculated using the 2-ΔΔCT method.

FIG. 3: Efficacy of C34-HP403 and LacNAc-heptaacetate in endotoxemic model of mouse. C57BL/6 mice 3 weeks old were intraperitoneally injected with Sal (Saline/DMSO), LPS 10 mg/kg, N-acetyl-D-Lactosamine heptaacetate (10 mg/kg), C34-HP403 (10 mg/kg) alone or co-injected with LPS. All mice were sacrificed 6 hrs later, lung tissue was harvested for total RNA isolation using Qiagnen RNeasy kits and reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA levels of pro-inflammatory cytokines was amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green supermix on CFX96 thermal cycler. Rplp0 housekeeping genes were used to normalize gene expression and relative mRNA expression data was calculated using the 2-

ΔCT method.

FIG. 4: Comparison of C34 and C34-triol in IEC-6 cells treated with LPS. Intestinal epithelial cells were plated overnight in 6-well plates with expected 70-80% confluency. Cells were treated Sal (Saline/DMSO), LPS 50 mg/ml, C34 (10 mg/ml), C34-Trios (10 mg/ml) alone in combination with LPS. Compounds were added 1 hr before addition of LPS as pretreatment (total treatment time is 7 hrs). Total RNA was isolated using Qiagnen RNeasy kit and reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA expression of pro-inflammatory cytokines was amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green Supermix on CFX96 thermal cycler. Rplp0 housekeeping genes were used to normalize gene expression and relative expression data was calculated using the 2-ΔΔCT method.

FIG. 5: Effect of C34, C34-triol and C34-HP403 on LPS exposure. C57BL/6 mice 3 weeks old were intraperitoneally injected with Sal (Saline/DMSO), LPS 10 mg/kg alone or co-injected with 10 mg/kg either of C34, or C34-triol, or C34-HP403. All mice were sacrificed 6 hrs later, lung tissue was harvested for total RNA isolation using Qiagnen RNeasy kits and reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA levels of pro-inflammatory cytokines was amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green supermix on CFX96 thermal cycler. Rplp0 housekeeping genes were used to normalize gene expression and relative mRNA expression data was calculated using the 2-ΔΔCT method.

FIG. 6: Effect of LPS 5 mg/kg and co-injection of compounds C-16 (N-acetyl-galactosamine) and C-27 (N-acetyl-lactosamine) at 10 mg/kg (i.p) for 6 hours in 3-weeks old C57BL/6 mice. C57BL/6 mice 3 weeks old were intraperitoneally injected with Sal (Saline/DMSO), LPS 10 mg/kg alone or co-injected with 10 mg/kg either of C16, or C27. All mice were sacrificed 6 hrs later, lung tissue was harvested for total RNA isolation using Qiagnen RNeasy kits and reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA levels of pro-inflammatory cytokines was amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green supermix on CFX96 thermal cycler. Rplp0 housekeeping genes were used to normalize gene expression and relative mRNA expression data was calculated using the 2-ΔΔCT method.

FIG. 7: NEC model C57/BL6 7-8 days old mice, subjected to NEC model with compounds mixed in NEC formula 10 mg/kg (2 mg/kg/feed or 10 mg/kg/day divided in 5 feeds). Control (Breast-fed) and NEC mice were sacrificed at same time on day 5 of treatments, small intestine (terminal ileum) was harvested for total RNA isolation using Qiagnen RNeasy kits, reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA expression of pro-inflammatory cytokines and apototic/necroptosis genes were amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green Supermix on CFX96 thermal cycler. Rplp0 housekeeping genes was used to normalize gene expression and relative expression data was calculated using the 2-ΔΔCT method.

FIG. 8: NEC model C57/BL6 7-8 days old mice, subjected to NEC model with compounds mixed in NEC formula 10 mg/kg (2 mg/kg/feed or 10 mg/kg/day divided in 5 feeds). Control (Breast-fed) and NEC mice were sacrificed at same time on day 5 of treatments, lung tissue was harvested for total RNA isolation using Qiagnen RNeasy kits, reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA expression of pro-inflammatory cytokines and apototic/necroptosis genes were amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green Supermix on CFX96 thermal cycler. Rplp0 housekeeping genes were used to normalize gene expression and relative expression data was calculated using the 2-ΔΔCT method.

FIG. 9: C34 protects against NEC induced intestinal injury. C57/BL6 (7-8 days old) mice subjected to NEC inducing regimen and treated with compounds (10 mg/kg/day divided in 5 feeds) mixed in formula diet. Control (Breast milk-fed) and NEC mice were sacrificed on Day 5. Small intestine (terminal ileum) was fixed in 4% paraformaldehyde and paraffin blocks, sectioned (5 μm), stained with hematoxylin and eosin (H&E) and imaged with EVOS imaging system.

FIG. 10: C34 protects against NEC induced lung injury. C57/BL6 (7-8 days old) mice subjected to NEC inducing regimen and treated with compounds (10 mg/kg/day divided in 5 feeds) mixed in formula diet. Control (Breast milk-fed) and NEC mice were sacrificed on Day 5. Left lungs were fixed in 4% paraformaldehyde and paraffin blocks, sectioned (5 μm), stained with hematoxylin and eosin (H&E) and imaged with EVOS imaging system.

FIG. 11: C34 protects against NEC induced neutrophil infiltration in the lungs. C57/BL6 (7-8 days old) mice subjected to NEC inducing regimen and treated with compounds (10 mg/kg/day divided in 5 feeds) mixed in formula diet. Control (Breast milk-fed) and NEC mice were sacrificed on Day 5. Left lungs were fixed in 4% paraformaldehyde and paraffin blocks, sectioned (5 μm), stained for inflammatory neutrophils (PMNs) and imaged with EVOS imaging system.

DETAILED DESCRIPTION OF THE INVENTION

In accordance with an embodiment, the present invention provides a compound having the following formula:

wherein R₁ is a C₃-C₆ branched or cyclic alkane, R₂ is H, or C₁-C₄ alkyl, R₃, R₄, R₅ and R₆ are each individually H, acyl, and C₂-C₆ alkyl, X is C₁-C₃ alkyl, or a salt, solvate or stereoisomer thereof.

The term “alkyl” is art-recognized, and includes saturated aliphatic groups, including straight-chain alkyl groups, branched-chain alkyl groups, cycloalkyl (alicyclic) groups, alkyl substituted cycloalkyl groups, and cycloalkyl substituted alkyl groups. In certain embodiments, a straight chain or branched chain alkyl has about 30 or fewer carbon atoms in its backbone (e.g., C₁-C₃₀ for straight chain, C₃-C₃₀ for branched chain), and alternatively, about 20 or fewer carbon atoms. Likewise cycloalkyls have from about 3 to about 10 carbon atoms in their ring structure, and alternatively about 5, 6 or 7 carbons in the ring structure. As used herein, the compositions comprise hexosamines which are modified with short chain alkyl groups. Preferably alkyl groups between 2 to 6 carbons which may, or may not be substituted.

Moreover, the term “alkyl” (or “lower alkyl”) includes both “unsubstituted alkyls” and “substituted alkyls,” the latter of which refers to alkyl moieties having substituents replacing hydrogen on one or more carbons of the hydrocarbon backbone. Such substituents may include, for example, a halogen, a hydroxyl, a carbonyl (such as a carboxyl, an alkoxycarbonyl, a formyl or an acyl), a thiocarbonyl (such as a thioester, a thioacetate, or a thioformate), an alkoxyl, a phosphoryl, a phosphonate, a phosphinate, an amino, an amidine, an imine, a cyano, a nitro, an azido, a sulfhydryl, an alkylthio, a sulfate, a sulfonate, a sulfamoyl, a sulfonamido, a sulfonyl, a heterocyclyl, an aralkyl, or an aromatic or heteroaromatic moiety. It will be understood by those skilled in the art that the moieties substituted on the hydrocarbon chain may themselves be substituted, if appropriate. For instance, the substituents of a substituted alkyl may include substituted and unsubstituted forms of amino, azido, imino, amido, phosphoryl (including phosphonate and phosphinate), sulfonyl (including sulfate, sulfonamido, sulfamoyl and sulfonate), and silyl groups, as well as ethers, alkylthios, carbonyls (including ketones, aldehydes, carboxylates, and esters), —CF₃, —CN and the like. Exemplary substituted alkyls are described below. Cycloalkyls may be further substituted with alkyls, alkenyls, alkoxys, alkylthios, aminoalkyls, carbonyl-substituted alkyls, —CF₃, —CN and the like.

The terms “amine” and “amino” are art-recognized and include both unsubstituted and substituted amines. A primary amine carries two hydrogens, a secondary amine, one hydrogen and another substituent and a tertiary amine, the two hydrogens are substituted. The substituents for one or both of the hydrogens can be, for example, and alkyl, an alkenyl, and aryl, a cycloalkyl, a cycloalkenyl, a heterocycle, a polycycle and so on. If both hydrogens are substituted with carbonyls, the carbonyl framed nitrogen forms an imide.

The term “alkylamine” includes an amine group, as defined above, having a substituted or unsubstituted alkyl attached thereto.

The term “aryl” is art-recognized, and includes 5-, 6-, and 7-membered single ring aromatic groups that may include from zero to four heteroatoms, for example, benzene, pyrole, furan, thiophene, imidazole, oxazole, thiazole, triazole, pyrazole, pyridine, pyrazine, pyridazine and pyrimidine, and the like. Those aryl groups having heteroatoms in the ring structure may also be referred to as “aryl heterocycles” or “heteroaromatics.” The aromatic ring may be substituted at one or more ring positions with such substituents as described above, for example, halogen, azide, alkyl, aralkyl, alkenyl, alkynyl, cycloalkyl, hydroxyl, alkoxyl, amino, nitro, sulfhydyl, imino, amido, phosphonate, phosphinate, carbonyl, carboxyl, silyl, ether, alkylthio, sulfonyl, sulfonamido, ketone, aldehyde, ester, heterocyclyl, aromatic or heteroaromatic moieties, —CF₃, —CN or the like. The term “aryl” also includes polycyclic ring systems having two or more cyclic rings in which two or more carbons are common to two adjoining rings (the rings are “fused rings”) wherein at least one of the rings is aromatic, e.g., the other cyclic rings may be cycloalkyls, cycloalkenyls, cycloalkynyls, aryls, and/or heterocyclyls, or rings joined by non-cyclic moieties.

The terms “ortho,” “meta” and “para” are art-recognized and apply to 1,2-, 1,3- and 1,4-disubstituted cyclohexanes, respectively. For example, the names 1,2-dimehtylbenzene and ortho-dimethylbenzene are synonymous.

The terms “heterocyclyl” and “heterocyclic group” are art-recognized, and include 3- to about 10-membered ring structures, such as 3- to about 7-membered rings, whose ring structures include one to four heteroatoms. Heterocycles may also be polycycles. Heterocycclyl groups include, for example, thiophene, thianthrene, furan, pyran, isobenzofuran, chromene, xanthene, phenoxanthin, pyrrole imidazole, pyrazole, isothiazole, isoxazole, pyridine, pyrazine, pyrimidine, pyridazine, indolizine, isoindole, indole, indazole, purine, quinolizine, isoquinoline, quinoline, phthalazine, naphtyridine, quinoxaline, quinazoline, cinnoline, pteridine, carbazole, carboline, phenanthridine, acridine, pyrimidine, phenanthroline, phenazine, phenarsazine, phenothiazine, furazan, phenoxazine, pyrrolidine, oxolane, thiolane, oxazole, piperidine, piperazine, morpholine, lactones, lactams such as azetidinones and pyrrolidinones, sultams, sultones and the like. The heterocyclic ring may be substituted at one or more positions with such substituents as described above, as for example, halogen, alkyl aralkyl, alkynyl, cycloalkyl, hydroxyl, amino, nitro, sulfhydryl, imino, amido, phosphonate, phosphinate, carbonyl, carboxyl, silyl, ether, alkylthio, sulfonyl, ketone, aldehyde, ester, a heterocyclyl, an aromatic or heteroaromatic moiety, —CD3, —CN or the like.

The terms “polycyclyl” and polycyclic group” are art-recognized and include structures with two or more rings (e.g., cycloalkyls, cycloalkenyls, cycloalkynyls, aryls and/or heterocyclyls) in which two or more carbons are common to two adjoining rings, e.g., the rings are “fused rings.” Rings that are joined through non-adjacent atoms, e.g., three or more atoms are common to both rings, are termed “bridged” rings. Each of the rings of the polycycle may be substituted with such substituents as described above, as for example, halogen, alkyl, aralkyl, alkenyl, alkynyl, cycloalkyl, hyroxyl, amino, nitro, sulfhydryl, imino, amido, phosphonate, phosphinate, carbonyl, carboxyl, silyl, ether, alkylthio, sulfonyl, ketone, aldehyde, ester, a heterocyclyl, an aromatic or heteroaromatic moiety, —CD3, —CN or the like.

The term “carbocycle” is art recognized and includes an aromatic or non-aromatic ring in which each atom of the ring is carbon. The following art-recognized terms have the following meanings: “nitro” means —NO₂; the term “halogen” designates —F, —Cl, —Br, or —I; the term “sulfhydryl” means —SH; the term “hydroxyl” or “hydroxy” means —OH; and the term sulfonyl” means —SO₂—.

The terms “amine” and “amino” are art-recognized and include both unsubstituted and substituted amines. A primary amine carries two hydrogens, a secondary amine, one hydrogen and another substituent and a tertiary amine, the two hydrogens are substituted. The substituents for one or both of the hydrogens can be, for example, and alkyl, an alkenyl, and aryl, a cycloalkyl, a cycloalkenyl, a heterocycle, a polycycle and so on. If both hydrogens are substituted with carbonyls, the carbonyl framed nitrogen forms an imide.

The term “alkylamine” includes an amine group, as defined above, having a substituted or unsubstituted alkyl attached thereto.

The term “amido” is art-recognized as an amino-substituted carbonyl.

The term “alkylthio” is art-recognized and includes and alkyl group, as defined above, having a sulfur radical attached thereto. In certain embodiments, the “alkylthio” moiety is represented by one of —S-alkyl, —S-alkenyl, —S-alkynyl and so on. Representative alkylthio groups include methylthio, ethylthio and the like.

The term “carbonyl” is art-recognized and includes a C═O structure. Carbonyls are involved in esters; carboxyl groups; formates; thiocarbonyls; thioesters; thiocarboxylic acids; thioformates; ketones; and aldehydes.

The terms “alkoxyl” and “alkoxy” are art-recognized and include an alkyl group, as defined above, having an oxygen radical attached thereto. Representative alkoxyl groups include methoxy, ethoxy, propyloxy, tert-butoxy and the like.

An “ether” is two hydrocarbons covalently linked by an oxygen. Accordingly, the substituent of an alkyl that renders that alkyl an ether is or resembles an alkoxyl, such as may be represented by one of —O-alkyl, —O-alkenyl, —O-alkynyl and so on.

The term “sulfonate” is art-recognized and includes a moiety wherein a sulfur atom carries two double bonded oxygens and a single bonded oxygen.

The term “sulfate” is art-recognized and includes a moiety that resembles a sulfonate but includes two single bonded oxygens.

The terms “sulfonamide,” “sulfamoyl,” “sulfonyl,” and “sulfoxido” are art-recognized and each can include a variety of R group substituents as described herein.

The terms phosphoramidite” and “phophonamidite” are art-recognized.

The term “selenoalkyl” is art-recognized and includes an alkyl group having a substituted seleno group attached thereto. Exemplary “selenoethers” which may be substituted on the alkyl are selected from one of —Se-alkyl, —Se-alkenyl, —Se-alkynyl and so on.

Substitutions may be made to alkenyl and alkynyl groups to produce, for example, aminoalkenyls, aminoalkynyls, amidoalkenyls, iminoalkenyls, iminoalkynyls, thioalkenyls, thioalkynyls, carbonyl-substituted alkenyls or alkynyls.

It will be understood that “substitution” or “substituted with” includes the implicit proviso that such substitution is in accordance with the permitted valency of the substituted atom and the substituent, and that the substitution results in a stable compound, e.g., which does not spontaneously undergo transformation, such as by rearrangement, cyclization, elimination, or other reaction.

The term “substituted” is also contemplated to include all permissible substituents of organic compounds such as the imide reagent of interest. In a broad aspect, the permissible substituents include acyclic and cyclic, branched and unbranched, carbocyclic and heterocyclic, aromatic and nonaromatic substituents of organic compounds. Illustrative substituents include, for example, those described herein. The permissible substituents may be one or more and the same or different for appropriate organic compounds. For purposes of this invention, the heteroatoms such as nitrogen may have hydrogen substituents and/or any permissible substituents of organic compounds described herein which satisfy the valences of the heteroatoms. This invention is not intended to be limited in any manner by the permissible substituents of organic compounds.

In accordance with an embodiment, the present invention provides a compound of formula I, having the following formula:

wherein R₂ is methyl, R₃ and R₄ are H, R₅ and R₆ are each individually H, and C₂-C₆ alkyl, and R₁ is a C₃-C₆ branched or cyclic alkane, or a salt, solvate or stereoisomer thereof, with the proviso that R₅ and R₆ cannot both be H or acyl and R₁ cannot be isopropyl.

In accordance with an embodiment, the present invention provides a compound having the following formula:

wherein R₂ is methyl, R₃ and R₄ are H, R₅ and R₆ are each individually H, and C₂-C₆ alkyl, and R₁ is a C₃-C₆ branched or cyclic alkane, or a salt, solvate or stereoisomer thereof, with the proviso that R₅ and R₆ cannot both be H or acyl and R₁ cannot be isopropyl.

The abbreviations Me, Et, Ph, Tf, Nf, Ts, and Ms are art-recognized and represent methyl, ethyl, phenyl, trifluoromethanesulfonyl, nonafluorobutanesulfonyl, p-toluenesulfonyl and methanesulfonyl, respectively. A more comprehensive list of the abbreviations utilized by organic chemists of ordinary skill in the art appears in the first issue of each volume of the Journal of Organic Chemistry; this list is typically presented in a table entitled Standard List of Abbreviations.

In accordance with an embodiment, the present invention provides a compound of formula II having the formula:

or a salt, solvate or stereoisomer thereof.

In accordance with an embodiment, the present invention provides a compound of formula III having the formula:

or a salt, solvate or stereoisomer thereof.

In accordance with an embodiment, the present invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of formula (II):

wherein R₂ is methyl, R₃ and R₄ are H, R₅ and R₆ are each individually H, and C₂-C₆ alkyl, and R₁ is a C₃-C₆ branched or cyclic alkane, or a salt, solvate or stereoisomer thereof, with the proviso that R₅ and R₆ cannot both be H or acyl and R₁ cannot be isopropyl, and a pharmaceutically acceptable carrier.

In accordance with an embodiment, the present invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of formula (III):

wherein R₂ is methyl, R₃ and R₄ are H, R₅ and R₆ are each individually H, and C₂-C₆ alkyl, and R₁ is a C₃-C₆ branched or cyclic alkane, or a salt, solvate or stereoisomer thereof, with the proviso that R₅ and R₆ cannot both be H or acyl and R₁ cannot be isopropyl, and a pharmaceutically acceptable carrier.

In some embodiments, the compounds and their use in the methods of the present invention are selected from the group consisting of:

1) 2-(acetylamino)-4-O-{2-(acetylamino)-4-O-[2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl]-2-deoxy-beta-D-glucopyranosyl}-2-deoxy-D-glucopyranose;

2) N-{(1S,2S,3R)-1-[(beta-L-glycero-hexopyranosyloxy)methyl]-2,3-dihydroxyheptadecyl}hexacosanamide;

3) 4-O-(3-O-{2-(acetylamino)-2-deoxy-4-O-(6-deoxyhexopyranosyl)-3-O-[2-O-(6-deoxyhexopyranosyl)hexopyranosyl]hexopyranosyl}hexopyranosyl)hexopyranose;

4) 3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl dihydrogen phosphate, sodium salt;

5) 5-acetamido-6-((1R,2R)-3-(3-(3-acetamido-5-hydroxy-6-(hydroxymethyl)-4-(3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yloxy)tetrahydro-2H-pyran-2-yloxy)-6-(4,5-dihydroxy-6-((E)-3-hydroxy-2-stearamidooctadec-4-e;

6) 3-O-(3-O-{2-(acetylamino)-2-deoxy-3-O-[2-O-(6-deoxyhexopyranosyl)hexopyranosyl]hexopyranosyl}hexopyranosyl)-D-arabinose;

7) cyclohexane-1,2,3,4,5,6-hexaylhexakis(dihydrogen phosphate), magnesium potassium salt;

8) cyclohexanamine compound with 1,6-di-O-phosphono-beta-D-glycero-hexopyranose (4:1) hydrate;

9) 1,2-O-(1-methylethylidene)-3-O-pentyl-6-O-[3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl]-alpha-D-xylo-hexofuranose;

10) 6-O-[2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl]-3-O-isopentyl-1,2-O-(1-methylethylidene)-alpha-D-xylo-hexofuranose;

11) (2S)-2-((4aR,6R,7R,8R,8aS)-7-acetamido-6-(2,3-bis(dodecyloxy)propoxy)-2,2-dimethylhexahydropyrano[3,2-d][1,3]dioxin-8-yloxy)propanoic acid;

12) propyl 3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxyhexopyranoside;

13) octyl 2-(acetylamino)-2-deoxy-beta-D-glycero-hexopyranoside;

14) butyl 2-(acetylamino)-2-deoxy-3,4-di-O-methyl-beta-D-glucopyranoside;

15) sulfuric acid compound with (2R)-4-amino-N-{(1R,2S,3S,4R,5S)-5-amino-2-[(3-amino-3-deoxy-alpha-D-glucopyranosyl)oxy]-4-[(6-amino-6-deoxy-alpha-D-glucopyranosyl)oxy]-3-hydroxycyclohexyl}-2-hydroxybutanamide (1:1);

16) 2-(acetylamino)-2-deoxy-D-galactopyranose hydrate;

17) 1,2-O-(1-methylethylidene)-3-O-propyl-6-O-[3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl]-alpha-D-xylo-hexofuranose;

18) Uridine 5′-diphospho-N-acetylgalactosamine disodium salt; 19) 2S,4S,5R,6R)-5-acetamido-2-((2R,3S,4S,5R,6S)-3,5-dihydroxy-2-(hydroxymethyl)-6-((2R,3S,4R,5S)-4,5,6-trihydroxy-2-(hydroxymethyl)tetrahydro-2<i>H</i>-pyran-3-yloxy);

20) methyl 2-(acetylamino)-2-deoxy-3-O-hexopyranosylhexopyranoside;

21) N-((2R,3R,4R,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-2-(((3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyltetrahydro-3aH-bis[1,3]dioxolo[4,5-b:4′,5′-d]pyran-5-yl)metho;

22) sec-butyl 2-(acetylamino)-2-deoxyhexopyranoside;

23) 2-(acetylamino)-2-deoxy-3-O-(6-deoxyhexopyranosyl)-4-O-hexopyranosylhexopyranose;

24) 1,3,4,6-tetra-O-acetyl-2-deoxy-2-(palmitoylamino)hexopyranose;

25) dimethyl 5-(acetylamino)-3,5-dideoxy-D-erythro-non-2-ulopyranosidonate;

26) octyl 2-(acetylamino)-2-deoxyhexopyranoside;

27) 2-(acetylamino)-2-deoxy-4-O-hexopyranosylhexopyranose;

28) [(4R)-5-acetamido-3,4,6-triacetyloxy-oxan-2-yl]methyl acetate;

29) (5-acetamido-3,4-diacetyloxy-6-pentoxy-oxan-2-yl)methyl acetate;

30) 2-((2R,5S)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-4-yloxy)propanoic acid;

31) 2-(acetylamino)-2-deoxy-alpha-D-lyxo-hexopyranose;

32) sodium (2S,3S,4R,5R,6R)-3-((2S,3R,5S,6R)-3-acetamido-5-hydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yloxy)-4,5,6-trihydroxytetrahydro-2H-pyran-2-carboxylate;

33) dodecyl 3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-beta-D-glucopyranoside;

34) isopropyl 3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxyhexopyranoside;

35) cyclohexyl 3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-alpha-D-glucopyranoside;

36) hexyl 3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-beta-D-glucopyranoside;

37) N-[(2R,3R,4R,5S,6R)-2-[(1′S,2′R,6R,8′R,9′S)-dispiro[cyclohexane-1,4′-[3,5,7,10,12]pentaoxatricyclo[7.3.0.0{circumflex over ( )}{2,6}]dodecane-11′,1″-cyclohexane]-8′-ylmethoxy]-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide;

38) (2R,3S,4R,5R,6R)-5-acetamido-2-(acetoxymethyl)-6-(((3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyltetrahydro-3a<i>H<i>-bis[1,3]dioxolo[4,5-b:4′,5′-d]pyran-5-yl)methoxy)tetrahydr;

39) 6-O-[2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl]-1,2-O-(1-methylethylidene)-3-O-propyl-alpha-D-xylo-hexofuranose;

40) (4R)-4-((S)-2-((2R)-2-((3R,4R,5S,6R)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-4-yloxy)propanamido)propanamido)-5-amino-5-oxopentanoic acid;

41) Uridine 5′-diphospho-N-acetylglucosamine sodium salt;

42) 2-(acetylamino)-3-O-{4-O-[2-(acetylamino)-2-deoxy-3-O-alpha-D-xylo-hexopyranuronosyl-beta-D-ribo-hexopyranosyl]-beta-D-xylo-hexopyranuronosyl}-2-deoxy-D-glucopyranose;

43) 2-(acetylamino)-2-deoxy-3-O-(6,8-dideoxy-beta-L-glycero-octopyranosyl-7-ulose)-4-O-sulfo-L-erythro-hexopyranose;

44) 8-{[2-(acetylamino)-4-O-[2-(acetylamino)-2-deoxyhexopyranosyl]-2-deoxy-6-O-(6-deoxyhexopyranosyl)hexopyranosyl]oxy}octyl acetate;

45) 2-(acetylamino)-2-deoxy-4-O-(6-deoxyhexopyranosyl)-3-O-hexopyranosylhexopyranose;

46) 2-(acetylamino)-2-deoxy-D-glucopyranose;

47) allyl 3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-beta-D-lyxo-hexopyranoside;

48) N-{(1S,2R,3E)-1-[(beta-L-ribo-hexopyranosyloxy)methyl]-2-hydroxy-3-heptadecenyl}octadecanamide;

49) sodium ((3S,6R)-5-acetamido-3,4,6-trihydroxytetrahydro-2H-pyran-2-yl)methyl phosphate;

50) allyl 2-(acetylamino)-2-deoxy-beta-D-glycero-hexopyranoside;

51) 1,3,4,6-tetra-O-acetyl-2-(acetylamino)-2-deoxy-beta-D-glycero-hexopyranose;

52) 2-(acetylamino)-2-deoxy-beta-D-glycero-hexopyranose;

53) 4-O-[2-(acetylamino)-2-deoxyhexopyranosyl]-1,5-anhydro-2-deoxyhexitol;

54) ethyl 2-(acetylamino)-2-deoxy-beta-D-glycero-hexopyranoside;

55) ethyl 3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-beta-D-glycero-hexopyranoside;

56) nonyl 2-(acetylamino)-2-deoxy-beta-D-glycero-hexopyranoside;

57) octadecyl 2-(acetylamino)-2-deoxy-beta-D-glycero-hexopyranoside;

58) 4-O-{6-O-[5-(acetylamino)-3,5-dideoxy-D-erythro-non-2-ulopyranonosyl]hexopyranosyl}hexopyranose;

59) 2-deoxy-2-(propionylamino)-D-glucopyranose;

60) 1,3,4,6-tetra-O-acetyl-2-(acetylamino)-2-deoxy-beta-D-glucopyranose;

61) [5-acetamido-3-acetyloxy-2-(acetyloxymethyl)-6-hexadecoxy-oxan-4-yl]acetate;

62) (5-acetamido-3,4-diacetyloxy-6-methoxy-oxan-2-yl)methyl acetate;

63) N-[2-ethoxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide;

64) [2,5-diacetyloxy-6-(acetyloxymethyl)-3-(dodecanoylamino)oxan-4-yl]acetate; and

65) N-[2-(dispiro[BLAH]ylmethoxy)-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide.

The term, “carrier,” refers to a diluent, adjuvant, excipient or vehicle with which the therapeutic is administered. Such physiological carriers can be sterile liquids, such as water and oils, including those of petroleum, animal, vegetable or synthetic origin, such as peanut oil, soybean oil, mineral oil, sesame oil and the like. Water is a suitable carrier when the pharmaceutical composition is administered intravenously. Saline solutions and aqueous dextrose and glycerol solutions also can be employed as liquid carriers, particularly for injectable solutions. Suitable pharmaceutical excipients include starch, glucose, lactose, sucrose, gelatin, malt, rice, flour, chalk, silica gel, sodium stearate, glycerol monostearate, talc, sodium chloride, dried skim milk, glycerol, propylene glycol, water, ethanol and the like. The composition, if desired, can also contain minor amounts of wetting or emulsifying agents, or pH buffering agents.

As used herein, the term “surfactant” refers to organic substances having amphipathic structures, namely, are composed of groups of opposing solubility tendencies, typically an oil-soluble hydrocarbon chain and a water-soluble ionic group. Surfactants can be classified, depending on the charge of the surface-active moiety, into anionic, cationic and nonionic surfactants. Surfactants often are used as wetting, emulsifying, solubilizing and dispersing agents for various pharmaceutical compositions and preparations of biological materials.

Pharmaceutically acceptable salts are art-recognized, and include relatively non-toxic, inorganic and organic acid addition salts of compositions of the present invention, including without limitation, therapeutic agents, excipients, other materials and the like. Examples of pharmaceutically acceptable salts include those derived from mineral acids, such as hydrochloric acid and sulfuric acid, and those derived from organic acids, such as ethanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid, and the like. Examples of suitable inorganic bases for the formation of salts include the hydroxides, carbonates, and bicarbonates of ammonia, sodium, lithium, potassium, calcium, magnesium, aluminum, zinc and the like. Salts may also be formed with suitable organic bases, including those that are non-toxic and strong enough to form such salts. For purposes of illustration, the class of such organic bases may include mono-, di-, and trialkylamines, such as methylamine, dimethylamine, and triethylamine; mono-, di-, or trihydroxyalkylamines such as mono-, di-, and triethanolamine; amino acids, such as arginine and lysine; guanidine; N-methylglucosamine; N-methylglucamine; L-glutamine; N-methylpiperazine; morpholine; ethylenediamine; N-benzylphenthylamine; (trihydroxymethyl) aminoethane; and the like, see, for example, J. Pharm. Sci., 66: 1-19 (1977).

In accordance with an embodiment, the present invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of formula (II) having the formula:

or a salt, solvate or stereoisomer thereof, further comprising an effective amount of at least one additional biologically active agent.

In accordance with an embodiment, the present invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of formula (III) having the formula:

or a salt, solvate or stereoisomer thereof, further comprising an effective amount of at least one additional biologically active agent.

In accordance with another embodiment, the present invention provides a pharmaceutical compositions described above, further comprising an effective amount of at least one additional biologically active agent.

An active agent and a biologically active agent are used interchangeably herein to refer to a chemical or biological compound that induces a desired pharmacological and/or physiological effect, wherein the effect may be prophylactic or therapeutic. The terms also encompass pharmaceutically acceptable, pharmacologically active derivatives of those active agents specifically mentioned herein, including, but not limited to, salts, esters, amides, prodrugs, active metabolites, analogs and the like. When the terms “active agent,” “pharmacologically active agent” and “drug” are used, then, it is to be understood that the invention includes the active agent per se as well as pharmaceutically acceptable, pharmacologically active salts, esters, amides, prodrugs, metabolites, analogs etc. The active agent can be a biological entity, such as a virus or cell, whether naturally occurring or manipulated, such as transformed.

The biologically active agent may vary widely with the intended purpose for the composition. The term active is art-recognized and refers to any moiety that is a biologically, physiologically, or pharmacologically active substance that acts locally or systemically in a subject. Examples of biologically active agents, that may be referred to as “drugs”, are described in well-known literature references such as the Merck Index, the Physicians' Desk Reference, and The Pharmacological Basis of Therapeutics, and they include, without limitation, medicaments; vitamins; mineral supplements; substances used for the treatment, prevention, diagnosis, cure or mitigation of a disease or illness; substances which affect the structure or function of the body; or pro-drugs, which become biologically active or more active after they have been placed in a physiological environment.

Further examples of biologically active agents include, without limitation, enzymes, receptor antagonists or agonists, hormones, growth factors, autogenous bone marrow, antibiotics, antimicrobial agents, and antibodies. The term “biologically active agent” is also intended to encompass various cell types and genes that can be incorporated into the compositions of the invention.

Non-limiting examples of biologically active agents include following: anti-asthmatic agents, anti-allergenic materials, anti-inflammatory agents such as steroids, non-steroidal anti-inflammatory agents, anti-neoplastic agents, anti-pyretic and analgesic agents, antihistamines, benzophenanthridine alkaloids, biologicals, cardioactive agents, cerebral dilators, coronary dilators, decongestants, diuretics, diagnostic agents, gastrointestinal sedatives, agents, growth factors, peripheral vasodilators, and prodrugs. anti-infective agents, such as mupirocin; antianaerobic anti-infectives, such as chloramphenicol and clindamycin; antifungal antibiotic anti-infectives, such as amphotericin b, clotrimazole, fluconazole, and ketoconazole; macrolide antibiotic anti-infectives, such as azithromycin and erythromycin; miscellaneous antibiotic anti-infectives, such as and imipenem; penicillin, antibiotic anti-infectives, such as nafcillin, oxacillin, penicillin G, and penicillin V; quinolone antibiotic anti-infectives, such as ciprofloxacin and nortfloxacin; tetracycline antibiotic anti-infectives, such as doxycycline, minocycline and tetracycline.

In accordance with a further embodiment, the present invention provides a method for treating an infectious or inflammatory disorder in a subject in need thereof comprising administering to the subject an effective amount of one or more inventive compounds as described above.

In some embodiments, the methods or use of the compounds for treating an infectious or inflammatory disorder in a subject in need thereof include the following compounds selected from the group consisting of:

In accordance with a further embodiment, the present invention provides a method for treating an intestinal inflammatory disorder in a subject in need thereof comprising administering to the subject an effective amount of one or more inventive compounds as described above.

In some embodiments, the methods or use of the compounds for treating an intestinal inflammatory disorder in a subject in need thereof include the following compounds selected from the group consisting of:

In accordance with a further embodiment, the present invention provides a method for treating a cardiovascular inflammatory disorder in a subject in need thereof comprising administering to the subject an effective amount of one or more compounds as described above.

In some embodiments, the methods or use of the compounds for treating a cardiovascular inflammatory disorder in a subject in need thereof include the following compounds selected from the group consisting of:

In accordance with a further embodiment, the present invention provides a method for treating a pulmonary inflammatory disorder in a subject in need thereof comprising administering to the subject an effective amount of one or more compounds as described above.

In some embodiments, the methods or use of the compounds for treating a pulmonary inflammatory disorder in a subject in need thereof include the following compounds selected from the group consisting of:

In accordance with a further embodiment, the present invention provides a method for treating a traumatic injury in a subject in need thereof comprising administering to the subject an effective amount of one or more compounds as described above.

In some embodiments, the methods or use of the compounds for treating a traumatic injury in a subject in need thereof include the following compounds selected from the group consisting of:

The following examples have been included to provide guidance to one of ordinary skill in the art for practicing representative embodiments of the presently disclosed subject matter. In light of the present disclosure and the general level of skill in the art, those of skill can appreciate that the following examples are intended to be exemplary only and that numerous changes, modifications, and alterations can be employed without departing from the scope of the presently disclosed subject matter. The synthetic descriptions and specific examples that follow are only intended for the purposes of illustration, and are not to be construed as limiting in any manner to make compounds of the disclosure by other methods.

LPS Induced Endotoxemia Model.

In general, C57BL/6 mice ˜3 weeks old were intraperitoneally injected with Saline/DMSO, lipopolysaccharides (LPS) 5 mg/kg alone or co-injected with compounds (10 mg/kg). All mice were sacrificed 6 hours later and small intestine (terminal ileum) and lungs were harvested for RNA isolation and histology.

LPS Treatment in IEC6 Cells.

In general, intestinal epithelial (IEC6) cells were overnight plated in 12-well plates in 10% growth media without antibiotics and treated with DMSO (vehicle), LPS (25 μg/ml) alone or co-treated with compounds (10 mg/ml) for 6 hours. At the end of treatments, cells were harvested for total RNA isolation.

RNA isolation and measurements of pro-inflammatory cytokines by Quantitative Real-time Polymerase Reaction (qRT-PCR).

In general, total RNA was isolated from small intestine (ileum), lungs, and IEC6 cells using RNeasy® kit, checked for RNA purity, and concentration on SpectraMax® microplate reader. 0.5 μg of total RNA was reverse transcribed for cDNA synthesis using the QuantiTect® Reverse Transcription kit. qRT-PCR was then performed on a Bio-Rad CFX96 Real-Time System using Sybr green mix and gene specific primers as given table below. The mRNA expression relative to the housekeeping gene ribosomal protein large PO (Rplp0) was calculated using the 2-ΔΔCT method. The primers used for qRT-PCR are shown in Table 1.

TABLE 1  Primers for qRT-PCR Amplicon Gene Forward sequence Reverse sequence Size (bp) Mouse IL-1β AGTGTGGATCCCAAGCAAT TGTCCTGACCACTGTTGTTTCCCA 175 ACCCA (SEQ ID NO: 1) (SEQ ID NO: 2) Rat iNOS CTGCTGGTGGTGACAAGCAC ATGTCATGAGCAAAGGCGCAGA 167 ATTT (SEQ ID NO: 3) AC (SEQ ID NO: 4) Mouse ACAACCAGTTCGCCATGGTA AAGCGGGTGAAACGTTCCTT 121 Lipocalin-2 T (SEQ ID NO: 5) (SEQ ID NO: 6) Mouse MPO GACAGTGTCAGAGATGAAG TTGATGCTTTCTCTCCGCTCC 189 CTACT (SEQ ID NO: 7) (SEQ ID NO: 8) Mouse PUMA GCAGTACGAGCGGCGGAGA GGGCGGGTGTAGGCACCTAGT 149 C (SEQ ID NO: 9) (SEQ ID NO: 10) Mouse TNF-α TTCCGAATTCACTGGAGCCT TGCACCTCAGGGAAGAATCTGGA 144 CGAA (SEQ ID NO: 11) A (SEQ ID NO: 12) Rat TNF-α CATCTTCTCAAAATTCGAGT TGGGAGTAGACAAGGTACAACCC 175 GACAA (SEQ ID NO: 13) (SEQ ID NO: 14) Rpl0 GGCGACCTGGAAGTCCAAC CCATCAGCACCACAGCCTTC 143 T (SEQ ID NO: 15) (SEQ ID NO: 16)

Histology Using Hematoxylin and Eosin (H&E) and Myeloperoxidase Staining

Generally, freshly harvested ileum and lung tissues were quickly fixed in 4% paraformaldehyde, processed for paraffin blocks, sectioned (5 μm), stained with Hematoxylin & Eosin (H&E) staining and imaged using EVOS imaging system. For immunostaining, paraffin sections were immunostained for inflammatory neutrophils (PMNs) using Myeloperoxidase antibody. Briefly, 5 μm paraffin sections were processed for citrate antigen retrieval, followed by overnight incubation with Myeloperoxidase primary antibody, washed and incubated with secondary antibody, and stained with DAB staining.

Exemplary Synthesis of C34-Triol.

The synthesis starts with C34 and uses a saponification to generate C34 triol. Protocol as follows: C-34 (0.425 g, 1.09 mmol) was added to a round bottom flask (50 mL) with a small stir bar. A stock solution 1.0 N sodium hydroxide was made up by dissolving 0.313 g of NaOH in 9.38 mL of water. The NaOH stock solution (6.42 mL) was added to the round bottom flask along with 16.4 mL of THF. The mixture was capped and stirred. The reaction was monitored via LCMS. After 160 minutes, LCMS indicated that full conversion had taken place. The reaction mixture was evaporated to almost dryness and aziotroped with toluene (8×3 mL) until a yellow-white solid had formed. A mass of the solid indicated approximately 800 mg of impure product. The impure product was put through a small column (4 in of Sift) eluting with chloroform:methanol (7:1) to separate the desired product from sodium acetate. The elutant was evaporated to give 0.212 g of desired product (73.8% yield). Purity was confirmed via HRMS and ELS and the separation of desired compound from sodium acetate was confirmed with proton NMR (CD₃OD). Related methods can be used to generate partially saponified analogs, and alcohols derived from other substitutions at the anomeric carbon and the C(2) carbon of the pyran ring. Also, this protocol can be used for various stereoisomers of C34 and related esters, which can be assessed in experimental models of endotoxemia and/or necrotizing enterocolitis.

Example 1

The efficacy of C34, C34-triol and C34-HP403 in endotoxemic model of mice.

C57BL/6 mice ˜3 weeks old were intraperitoneally injected with Sal (Saline/DMSO), LPS 10 mg/kg alone or co-injected with 10 mg/kg either C34, or C34-Trios, or C34-HP403. All mice were sacrificed 6 hours later, small intestine (terminal ileum) was harvested for total RNA isolation using Qiagnen RNeasy kits and reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA levels of pro-inflammatory cytokines was amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green supermix on CFX96 thermal cycler. Rplp0 house keeping genes was used to normalize gene expression and relative mRNA expression data was calculated using the 2-ΔΔCT method (FIG. 1).

Example 2

Potency and efficacy comparison of C34, C34triol and C34-HP403 in intestinal epithelial cells challenged with LPS.

C57BL/6 mice 3 weeks old were intraperitoneally injected with Sal (Saline/DMSO), LPS 10 mg/kg alone or co-injected with C34 or C34-HP403 at indicated dosages (FIG. 2). All mice were sacrificed 6 hrs later, small intestine (terminal ileum) was harvested for total RNA isolation using Qiagnen RNeasy kits and reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA levels of pro-inflammatory cytokines was amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green supermix on CFX96 thermal cycler. Rplp0 house keeping genes was used to normalize gene expression and relative mRNA expression data was calculated using the 2-ΔΔCT method.

Example 3

Efficacy of C34-HP403 and LacNAc-heptaacetate in endotoxemic model of mouse.

C57BL/6 mice 3 weeks old were intraperitoneally injected with Sal (Saline/DMSO), LPS 10 mg/kg, N-acetyl-D-Lactosamine heptaacetate (10 mg/kg), C34-HP403 (10 mg/kg) alone or co-injected with LPS (FIG. 3). All mice were sacrificed 6 hrs later, lung tissue was harvested for total RNA isolation using Qiagnen RNeasy kits and reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA levels of pro-inflammatory cytokines was amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green supermix on CFX96 thermal cycler. Rplp0 house keeping genes was used to normalize gene expression and relative mRNA expression data was calculated using the 2-ΔΔCT method.

Example 4

Comparison of C34 and C34-triol in IEC-6 cells treated with LPS.

Intestinal epithelial cells were plated overnight in 6-well plates with expected 70-80% confluency. Cells were treated Sal (Saline/DMSO), LPS 50 mg/ml, C34 (10 mg/ml), C34-Trios (10 mg/ml) alone in combination with LPS. Compounds were added 1 hr before addition of LPS as pretreatment (total treatment time is 7 hrs) (FIG. 4). Total RNA was isolated using Qiagnen RNeasy kit and reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA expression of pro-inflammatory cytokines was amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green Supermix on CFX96 thermal cycler. Rplp0 house keeping genes was used to normalize gene expression and relative expression data was calculated using the 2-ΔΔCT method.

Example 5

Comparison of the effect of C34 and C34-triol in lung tissue of 3 week old mice exposed to LPS.

C57BL/6 mice 3 weeks old were intraperitoneally injected with Sal (Saline/DMSO), LPS 10 mg/kg alone or co-injected with 10 mg/kg either of C34, or C34-Triol, or C34-HP403. All mice were sacrificed 6 hrs later, lung tissue was harvested for total RNA isolation using Qiagnen RNeasy kits and reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA levels of pro-inflammatory cytokines was amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green supermix on CFX96 thermal cycler. Rplp0 house keeping genes was used to normalize gene expression and relative mRNA expression data was calculated using the 2-ΔΔCT method.

Example 6

Administration of LPS 5 mg/kg and co-injection of compounds C-16 (N-acetyl-galactosamine) and C-27 (N-acetyl-lactosamine) 10 mg/kg (i.p) for 6 hours in 3-weeks old C57BL/6 mice.

C57BL/6 mice 3 weeks old were intraperitoneally injected with Sal (Saline/DMSO), LPS 10 mg/kg alone or co-injected with 10 mg/kg either of C16, or C27. All mice were sacrificed 6 hrs later, lung tissue was harvested for total RNA isolation using Qiagnen RNeasy kits and reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA levels of pro-inflammatory cytokines was amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green supermix on CFX96 thermal cycler. Rplp0 house keeping genes was used to normalize gene expression and relative mRNA expression data was calculated using the 2-ΔΔCT method.

Example 7

Effect of compounds on intestinal inflammation of 8 day old mice in NEC model.

C57/BL6 7-8 day old mice, subjected to NEC model with compounds mixed in NEC formula 10 mg/kg (2 mg/kg/feed or 10 mg/kg/day divided in 5 feeds). Control (Breast-fed) and NEC mice were sacrificed at same time on day 5 of treatments, small intestine (terminal ileum) was harvested for total RNA isolation using Qiagnen RNeasy kits, reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA expression of pro-inflammatory cytokines and apototic/necroptosis genes were amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green Supermix on CFX96 thermal cycler. Rplp0 house keeping genes was used to normalize gene expression and relative expression data was calculated using the 2-ΔΔCT method.

Example 8

Effect of compounds on lung inflammation of 8 day old mice in NEC model.

NEC model C57/BL6 7-8 day old mice, subjected to NEC model with compounds mixed in NEC formula 10 mg/kg (2 mg/kg/feed or 10 mg/kg/day divided in 5 feeds).

Control (Breast-fed) and NEC mice were sacrificed at same time on day 5 of treatments, lung tissue was harvested for total RNA isolation using Qiagnen RNeasy kits, reverse-transcribed into cDNA using Qiagen QuantiTect Reverse Transcription kit. mRNA expression of pro-inflammatory cytokines and apototic/necroptosis genes were amplified using gene-specific forward and reverse primers with BioRad iQ SYBR Green Supermix on CFX96 thermal cycler. Rplp0 housekeeping genes were used to normalize gene expression and relative expression data was calculated using the 2-ΔΔCT method.

Example 9

C34 and analogs protect against NEC induced intestinal injury.

NEC model C57/BL6 7-8 day old mice, subjected to NEC model with compounds mixed in NEC formula 10 mg/kg (2 mg/kg/feed or 10 mg/kg/day divided in 5 feeds). Control (Breast-fed) and NEC mice were sacrificed at same time on day 5 of treatments, small intestine (terminal ileum) was fixed in 4% paraformaldehyde, processed for paraffin blocks, sectioned in 5 μm slices and stained with hematoxylin and eosin staining and imaged using EVOS imaging system.

All references, including publications, patent applications, and patents, cited herein are hereby incorporated by reference to the same extent as if each reference were individually and specifically indicated to be incorporated by reference and were set forth in its entirety herein.

The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The terms “comprising,” “having,” “including,” and “containing” are to be construed as open-ended terms (i.e., meaning “including, but not limited to,”) unless otherwise noted. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention.

Preferred embodiments of this invention are described herein, including the best mode known to the inventors for carrying out the invention. Variations of those preferred embodiments may become apparent to those of ordinary skill in the art upon reading the foregoing description. The inventors expect skilled artisans to employ such variations as appropriate, and the inventors intend for the invention to be practiced otherwise than as specifically described herein. Accordingly, this invention includes all modifications and equivalents of the subject matter recited in the claims appended hereto as permitted by applicable law. Moreover, any combination of the above-described elements in all possible variations thereof is encompassed by the invention unless otherwise indicated herein or otherwise clearly contradicted by context. 

1. A compound having the following formula:

wherein R₁ is a C₃-C₆ branched or cyclic alkane, R₂ is H, or C₁-C₄ alkyl, R₃, R₄, R₅ and R₆ are each individually acyl, and C₂-C₆ alkyl, X is C₁-C₃ alkyl, or a salt, solvate or stereoisomer thereof. 2-3. (canceled)
 4. The compound of claim 1, wherein R₁, R₂ and R₃ are each H.
 5. The compound of claim 1, wherein R₁, R₂ and R₃ are each CH₃CH₂.
 6. The compound of claim 1 having the formula:

or a salt, solvate or stereoisomer thereof.
 7. (canceled)
 8. A pharmaceutical composition comprising a therapeutically effective amount of a compound of claim 1 and a pharmaceutically acceptable carrier.
 9. (canceled)
 10. The pharmaceutical composition of claim 8, wherein R₁, R₂ and R₃ are each H.
 11. The pharmaceutical composition of claim 8, wherein R₁, R₂ and R₃ are each CH₃CH₂. 12-13. (canceled)
 14. The pharmaceutical composition of claim 8 having the formula:

or a salt, solvate or stereoisomer thereof.
 15. (canceled)
 16. The pharmaceutical composition of claim 8, further comprising an effective amount of at least one additional biologically active agent.
 17. The pharmaceutical composition of claim 16, wherein the least one additional biologically active agent is an anti-inflammatory agent. 18-21. (canceled)
 22. A method for treating an infectious disorder, an inflammatory disorder, or a traumatic injury in a subject in need thereof comprising administering to the subject an effective amount of a compound of claim 1 or a pharmaceutical composition thereof.
 23. The method of claim 22, wherein the inflammatory disorder comprises an intestinal inflammatory disorder.
 24. The method of claim 22, wherein the inflammatory disorder comprises an cardiovascular inflammatory disorder.
 25. The method of claim 22, wherein the inflammatory disorder comprises an pulmonary inflammatory disorder. 26-31. (canceled)
 32. The method of claim 22, wherein the compound is:

or a salt, solvate or stereoisomer thereof.
 33. (canceled) 